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Your search keyword '"Stepanov, D."' showing total 6 results
Start Over Author "Stepanov, D." Topic nuclear reactions
6 results on '"Stepanov, D."'

1. Spectroscopy of 9He, Quasi-free Scattering 6He+4He.

Author

Wolski, R., Golovkov, M. S., Grigorenko, L. V., Fomichev, A. S., Gorshkow, A. V., Krupko, S. A., Rodin, A. M., Sidorchuk, S. I., Slepnev, R. S., Stepantsov, S. V., Ter-Akopian, G. M., Korsheninnikov, A. A., Nikolskii, E. Yu., Kuzmin, E. A., Novatskii, B. G., Stepanov, D. N., Fortier, S., Roussel, P., and Mittig, W.

Subjects
DEUTERIUM, SCATTERING (Physics), COLLISIONS (Nuclear physics), KINEMATICS, NUCLEAR reactions
Abstract

Low lying states of the unbound 9He system were investigated by means of the (d,p) reaction. A cryogenic deuterium target was bombarded by a secondary 8He beam. Complete kinematics measurements were accomplished. The observed 9He states are broad and overlapping. Their spins and parities have been unambiguously determined. Data from a 6He(α,2α)2n experiment have been analyzed in terms of a quasi-free scattering approach. A large effect of the 2n final state interaction on the internal 6He momentum distribution has been demonstrated. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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2. LOW-ENERGY SPECTRA OF 8He AND 10He STUDIED IN (t,p) TYPE REACTIONS IN INVERSE KINEMATICS.

Author

CHUDOBA, V., FOMICHEV, A. S., GRIGORENKO, L. V., GOLOVKOV, M. S., GORSHKOV, V. A., KRUPKO, S. A., OGANESSIAN, Yu. Ts., RODIN, A. M., SIDORCHUK, S. I., SLEPNEV, R. S., STEPANTSOV, S. V., TER-AKOPIAN, G. M., WOLSKI, R., PANG, D., KORSHENINNIEOV, A. A., KUZMIN, E. A., NIKOLSKII, E. Yu., NOVATSKII, B. G., STEPANOV, D. N., and ROUSSEL-CHOMAZ, P.

Subjects
SPECTRUM analysis, HELIUM, NUCLEAR reactions, KINEMATICS, MASS spectrometry
Abstract

Missing mass spectra for 8He and 10He obtained in the reactions 3H(6He, p)8He and 3H(8He, p)10He, respectively, are presented. [ABSTRACT FROM AUTHOR]

Published
2009

3. Alpha-decay of excited states in 13C and 14C.

Author

Price, D. L., Freer, M., Ahmed, S., Ashwood, N. I., Clarke, N. M., Curtis, N., McEwan, P., Metelko, C. J., Novatski, B., Sakuta, S., Soić, N., Stepanov, D., and Ziman, V.

Subjects
*NUCLEAR reactions, *ANGULAR correlations (Nuclear physics), *SCATTERING (Physics), *SPECTRUM analysis
Abstract

Measurements of the 14C(13C, 13C[9Be+α]) and 14C(13C, 14C[10Be+α]) break-up reactions have been made at beam energies of 77.8, 112.25 and 119.25 MeV. The studies were performed with two charged particle telescopes which measured the energy, mass, charge and emission angle of each detected particle. These data provide evidence for α-decaying states at 13.2(1), (13.6(2)), 14.2(1), 15.0(1) and 16.0(1) MeV in 13C and 14.9(1), 15.9(1), 16.5(1), 18.5(3), (19.1(2)), (19.9(2)) and 21.3(4) MeV in 14C. The 13C angular distributions were analysed and give an indication of the parity of the various states populated. These data are interpreted from the perspective of the α-cluster structure of 13,14C, and indicate the preferential population of oblate type cluster states. [Copyright &y& Elsevier]

Published
2006
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